International Scholarly Research Notices / 2013 / Article / Tab 1

Research Article

Spatial Dispersal of Douglas-Fir Beetle Populations in Colorado and Wyoming

Table 1

Total infestation areas for all years and regions shown with values of standard dispersal distance (SDD). Regional averages are displayed at the bottom.

YearColorado
eastern slope
Southwestern ColoradoNorthwestern ColoradoWyoming
Area (ha)SDD (m)Area (ha)SDD (m)Area (ha)SDD (m)Area (ha)SDD (m)

19947,1359037021,99600
19954163,6013254,499151,7173,097
19962901,0372,2271,2885,607490656
19975281,1021,00438131,052525
19983,8432,7181,218255204214667
19991,8481,993482509572581,912410
20002,1741,6803,0307921723422,9771,542
20012,6052,7178097363401,5214,7652,863
20022,3503,3121,77017553510,970894
20036,3021,89711,7288731,5016447,2422,287
20047,3041,6418,8692,4861,0492,53227,5713,739
20053,2143,6937,5516721,27467,74410,605
20064,6449705,6302,3893,2331,3846,7541,008
20072,3481,28112,6781,9494,6641,41324,053871
20085553,5308,1228042,7113158,5353,817
20092,1871,3046,3177627605641,4487,599
20105,1082,1248,9837087576012,9382,030

Avg
3,1092,0124,8821,3901,32885910,0222,663